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Punnett Square Practice
Test Description: Questions reviewing punnett squares and the history.
Instructions: Answer all questions to get your test result.
1) What is the correct definition for the word heterozygous?
A
A genotype with 2 of the same alleles such as SS or ss
B
an organisms physical characteristics
C
A genotype with 2 different alleles such as Ss
D
an organisms genetic make-up
2) Define genotype.
A
an organisms genetic make-up
B
an organisms physical characteristics
C
A genotype with 2 of the same alleles such as SS or ss
D
A genotype with 2 different alleles such as Ss
3) What is the definition of homozygous?
A
an organisms genetic make-up
B
A genotype with 2 of the same alleles such as SS or ss
C
A genotype with 2 different alleles such as Ss
D
an organisms physical characteristics
4) Define the word phenotype.
A
A genotype with 2 different alleles such as Ss
B
A genotype with 2 of the same alleles such as SS or ss
C
an organisms physical characteristics
D
an organisms genetic make-up
5) This is the study of how traits are passed from one generation to another
A
Genetics
B
Codominance
C
Incomplete dominance
D
Complete dominance
6) A trait that masks another trait, shown with a capital letter (S).
A
codominance
B
recessive allele
C
dominant allele
D
incomplete dominance
7) A trait that is hidden by a dominant trait, shown with a lowercase letter (q).
A
recessive allele
B
codominance
C
dominant allele
D
incomplete dominance
8) When neither of 2 traits is dominant and the combination (RW) equals a blend (pink).
A
incomplete dominance
B
recessive allele
C
codominance
D
dominant allele
9) A trait produced when both alleles are fully expressed in an individual who is heterozygous (RW=spots).
A
codominance
B
dominant allele
C
incomplete dominance
D
recessive allele
10) An allele for a trait that is carried on the sex chromosomes usually the x chromosome.
A
sex linked
B
codominance
C
incomplete dominance
D
complete dominance
*select an answer for all questions
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